These stencils were very helpful in my search to find the perfect eyebrow shape to suit my face.. The stencils are very easy to use, here is what I do:. - hold the stencil up to your eyebrow and position the way you want. - take a white eyeliner pencil and trace the shape onto your brow. - then tweeze/wax around the outline.. It's a way easier and cheaper way to shape your eyebrows than paying and trusting someone else with them.